Socket-piece for holding music-spools.



E. KETTERER.

SOGKET PIECE FOR HOLDING MUSIC SPOOLS. APPLICATION FILED JULY 25, 1911.

1,083,618, Patented Jan. 6, 1914.

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II 2%??? r UNTTED STATES PATENT @FFTQFL.

EUGENE KETTERER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE AUTO PNEUMATIC ACTION COMPANY, A CORPORATION OF NEW YORK.

SOCKET-PIECE FOR HOLDING MUSIG-SPOOLS.

Specification of Letters Patent.

Patented J an. 6, 1914.

To all whom it may concern: 7

Be it known that I, EUGENE KETTERER, a citizen of the United States, residing at St. Louis city, in the State of Missouri, have invented a new and useful Socket-Piece for Holding Music-Spools, of which the following is a specification.

The object of this invention is to prov de a new and improved socket piece for holding music spools as they are used in automatic musical instruments. A music spool has to be held on its center so that the music sheet can be drawn therefrom for playing, and so that the spool can be positively rotated in reverse direction to rewind the music sheet after playing. These music spools are usually made in two forms. The first of these forms consists in providing the music spool with a spindle, the end of which is slabbed so as to form a tenon or a cross. When a music spool of this kind is employed, a socket piece is used which has a slot or slots into which said spindle can engage so that the music spool will be held positively. This construction of music spool is usually adopted with the so-called 65-note music sheets. The second form in which the music spools are made is to provide the same with a socket at one end, a mortise being formed in the bottom of said socket. With this arrangement, a socket piece is provided which has a projecting tenon which can fit into said mortise and thus hold the music spool. This construction of music spool is usually adopted with the so called 88 note music sheets.

It very often occurs that it is desired to use both kinds of music spools in the same instrument. The way this has usually been done is to provide the socket piece which cooperates with the 65 note music spool, with a dummy collar which has a projecting tenon, which collar can be secured on the end of the socket piece so as to make it possible to use said socket piece and collar for 88 note music spools. This collar is taken off when 65 note music spools are to be employed. This dummy collar is often lost and it is sometimes difiicult to teach an inexperienced operator how to adjust the same.

The object of this present invention is to overcome this ditliculty. This I accomplish by arranging the socket piece so as to have an end shaped to receive and hold a music spool which has a spindle and by combining integral means with said socket piece which can be moved into operative position to engage a music spool which has a socket. This integral means preferably consists of two arms pivoted to the socket piece, which arms have projections so arranged that when the arms are turned down to operative position, said projections will form a tenon which can engage into the mortise of a music spool which does not have a spindle. By this arrangement, the entire socket piece is an integral structure in that it can be used to hold either style of music spool and there is no liability of losing any part. It is also very easy to adjust the socket piece to either style of music spool.

The invention further consists of certain details of construction hereinafter more particularly described and pointed out in the claims at the end of this specification.

Referring to the accompanying drawing forming part of this application, Figure 1 is a partial front elevation showing my socket piece applied to a music spool which has a socket and mortise. Fig. 2 is an end view of the music spool illustrated in Fig. 1. Fig. 3 is a detached view of the socket piece as it is adjusted to cooperate with the music spool shown in Fig. 2. Fig. 4: is a partial front elevation of a music spool having a spindle and showing how the socket piece is adjusted to cooperate therewith. Fig. 5 is a plan view of the music spool and socket piece adjusted as shown in Fig. 4. Fig. 6 is an enlarged view partly in section illustrating the con-- struction of the socket piece. Fig. 7 is an end elevation of the socket piece adjusted as shown in Fig. 4, and 8 is an end elevation of the socket piece adjusted as shown in Fig. 1.

Referring to the drawing and in detail, 10 designates a shaft which is j ournaled in a bearing formed in the frame and which may have the usual gear, pulley or sprocket wheel thereon for turning the spool. This shaft is provided at its end with a socket piece 11. This socket piece is slotted at right angles, and two arms 1212 are mounted on pivots 1813 riveted in said socket 11, said arms being arranged so that they can fold down into one of the slots in the socket 11, as illustrated in Fig. 3. The arms 1212 are provided at their ends with projections 1et14c, which, when the arms are folded into operative position as illustrated in Fig. 3, will form a tenon. The arms are also provided with extending semicylindrical portions 1515 which are ar- .ranged so that when the arms are folded to operative position, the same will practically form a smooth extension of the socket 11.

One arm 12 is provided with a pin 16 which can engage into a hole 17 formed in the other arm when the arms are folded to operative position, so as to strengthen the structure. A double armed spring 18 is housed in the socket 11 and engages the ends of the arms 1212 so as to hold the same either in their open or closed positions. The operation is as follows :VVhen a music spool is to be employed which has a spindle, the arms 12-12 are pulled upwardly so as to extend at right angles to the socket, as shown in Fig. t. This leaves the slotted end of the socket piece exposed so that the slabbed end 19 of the spindle of the music spool can be inserted therein. When a music spool is to be employed which has a socket on its end and a mortise at the bottom of the socket, the arms are folded down to operative position, as illustrated in Fig.

3, so that the tenon formed by the projec tions 1 l14l can engage into the mortise 20 formed in the bottom of the socket in the music spool. Thus the socket piece can be advantageously employed to hold either style of music spool. The socket piece is adjusted for these operations merely by folding or unfolding the pivoted arms. This can be readily done by any operator. A particular advantage of the device is that all the parts are integral and no part can be misplaced or lost.

The details and arrangements herein described may be greatly Varied by a skilled mechanic without departing from the scope of my invention as expressed in the claims.

Having thus fully described my invention,

what I claim and desire to secure by Letters Patent is 1. A socket piece for holding music spools having a slotted end for receiving and holding the spindle ofa music spool and a pair of driving arms pivoted thereto and arranged so that the same can be folded into position to extend beyond said slotted end, said arms being each provided at-its outer end with a projection, said projections when in operative position uniting to form a single driving device to engage and rotate-a music spool mounted thereon.

2. A socket piece for holding music spools having an end provided with two slots at right angles to each other and having two driving arms pivoted in one of said slots, said arms being each provided with a projection which will extend beyond the end of the socket piece when the arms are folded into the slot and which together form a tenon for engaging and rotating a music spool which has a mortise, said arms also being so mounted and proportioned that when folded they lie wholly within the circumference of said end and constitute a substantially uniform extension thereof.

3. A socket piece for holding music spools, having an end which is slotted at right angles, and two arms pivoted in one of the slots, said arms being provided with projections which will extend beyond the end of the socket piece when the arms are folded down into the slot and form a tenon for engaging a music spool which has a mortise, one of said arms being provided with a pin and the other arm with a hole arranged so that the pin will enter said hole and strengthen the structure when the arms are folded into operative position.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

EUGENE KETTERER.

l/Vitnesses GEO. H. MARTING, A. J. DIOKHAUS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

